Wash check collar



April 13, 1948. Gv E, ROBERTS 2,439,488

' WASH CHECK COLLAR f Filed Jan, 25, 1946 MMM Patented -Apr. 13, 1948UNITED STATES PATENT GFFICE wAsH CHECK COLLAR Y George E. Roberts,Martinsville, Mo. Appucationianuary 25, 194e, serial No. 648,812

2 Claims.

My invention relates to tubes or culverts and more especially to adevice adapted to be at tached to a tube or culvert.

The object of my invention is to provide an attachment for a culvert orthe like adapted to prevent the soil in which the tube or culvert isembedded from being washed out.

Another object of my invention is to provide an attachment to a culvertor the like to prevent insects or animals irom burrowing under saidculvert and thereby starting channels which in time would cause cave-insor Wash-outs.

A further object of my invention is to provide an attachment to aculvert or the like adapted to catch` and hold any loose dirt or thelike caused to break away from the soil, in which the culvert isembedded, by hot dry weather or through the eiect of alternatingfreezing and thawing.

Other objects of my invention may appear in the following specificationdescribing my invention with reference to the accompanying drawingillustrating a preferred embodiment of my invention. It is however to beunderstood that my invention is not to be limited or restricted to theexact construction and combination of parts shown in the drawing anddescribed in the specication, but that such changes and modificationscan be made which fall within the scope of the claims appended hereto.

In the drawing:

Figure 1 shows a culvert equipped with wash check collars according tomy invention.

Figure 2 is a sectional View taken on line 2-2 of Figure 1.

Figure 3 is a detail View in a larger scale of one unit forming the washcheck collar according to my invention. 1

Figure 4 is a detail view of a unit cooperating with the unit shown inFigure 3 to form the wash check collar according to my invention.

Figure 5 is a detail View of a part of the frame of the wash checkcollar according to my invention, and

Figure 6 is a detail View of another part of the frame of the wash checkcollar according to my invention.

Referring now in detail to the drawing a culvert tube 0 is embedded inthe soil under a roadway or the like.

Wash check collars I I are attached to the culvert tube in desireddistances from each other.

Each check fcollar II consists of two substantially semi-circular stripsof metal screening I2. The inner radius of each of these strips is suchthat the two strips t onto the culvert tube I0.

erably made from flat bar iron and the secondly `named half collars I4have on their two ends diametrically and outwardly extending arms I5.The inside radii of these half-collars I3 and I4 are the same as theinside radii of the screen strips I2. The half collars are arranged onthe screen strips so that one half collar I3 is located on one side of astrip I2 and one half collar I4 on the other side. 'I'he half collars I3do not extend all the way over the strips I2 but stop approximately evenwith the outer edges of the arms I 5. In the half collars and the stripsholes I6 are provided at regular intervals from each other and bolts I1having nuts I8 thereon extend through said holes and clamp the threeelements together.

While nuts and bolts are being used in the present embodiment of myinvention, it is to be understood that the three elements may beconnected in any other desired conventional way, for instance, bywelding, soldering, etc.

In the arms I5 and the wire screening adjacent thereto a plurality ofrectangular or oblong holes I9 are provided, adapted to receive bolts IItherein.

When the semi-circular shaped frame sections are to :be attached to aculvert tube I0 they are arranged so that one half collar I3 and onehalf collar I4 will be located at the same side. In this manner the armsI5 on the half collar I4 on one side will cover the arms I5 of the halfcollar I4 on the other side to thereby provide a co-acting meansadjacent the edge faces of the thus-arranged sections for securing thelatter together, bolts I'I extended through the corresponding holes I9in the two corresponding arms, so that the two half check collars arermly held together and form a wash check collar II which is clamped ontothe culvert tube I0.

The holes I9 of two cooperating half collars I4 may be so arranged thatthey extend at right angles to each other. This affords a greatermeasure of adjustability to the parts to be assembled.

While the present embodiment of my invena tion describes and shows checkcollars consisting of two substantially similar half check collars, itis to be understood that any desired number of smaller portions may beutilized to form a whole wash check collar.

When a culvert tube is provided with one or more wash check collars asdescribed above the screen elements of said collars will prevent theground supporting and surrounding said culvert tube from being Washedaway by catching and holding ground particles, silt and the like,thereby preventing sagging down of the tube and Iany damage causedthereby.

Having described my invention, what I claim and desire to' secure byLetters Patent is:

1. The combination with a culvert, of a Wash check collar surroundingsaid culvert and attached thereto, said collar comprising a pair ofsemi-circular shaped frame sections arranged so that the edge face ofone of said sections is in confronting meeting relation with the edgeface of the other of said sections, a semi-circular shaped strip ofmetal screening projecting from each of said sections and carriedthereby, and' means for securing the thus assembled sections 20together.

2. The combination with a culvert, of a Wash check collar surroundingsaid culvertV and attached thereto, said collar comprising a pair ofsemi-circular shaped frame sections arranged so that the edge face ofone of said sections is in confronting meeting relation with the edgeface of the other of said sections, a semi-circular shaped strip ofmetal screening projecting from each of said sections and carriedthereby, and

`coaotingmeans` adjacent the edge faces of the thus arranged sectionsfor securing the latter together.

GEORGE E. ROBERTS.

Country Date Switzerland 1920 Number

